Improvement in steam-generators



mtm @tutti 'ANTH oNYI DEMARCE, or `FninritzLi), IOWA,A

Leners PmmfNo. 90,083, dated Ma/J 1s, i869.

The Schedule-referred to ,in these Le'tters'Patent milking p art of the Blame.

" To allwhomitma/yconcern:

Be it known that I, ANTHONY DnMARon, of Fai-rfieid, inrthe county of Jei'erson, and State of Iowa,

`have invented certain new` and useful Improvements in` Upright Boilers; and I do hereby declare-that the following is a full, clear, and exact description of my' invention, referencekbeiug had to the aceompanying drawings, in which-f i, y 1 Y Figure l, letter G, represents the smoke-box.`

i `Figure 2, letter A, represents the boiler in its natural position, with the sinok'efbox removed, letterB showing the openings of the bent fines.

Figure, `The letter Brepresents the openings of' the iines'where theycommnnieate with the fire-box.

Figure 4 represents thefskeleton o f the boiler, showing the curved flues B. Y The smoke-box`(lig. l) 0, nto'which all. theA fines open,v gives a very large extent of 4heating-siii-face for the water surrounding the fines in that part of the boiler, `so that thereis the greatest possible economy of fuel, and the least waste of heat.

The steam-dome, shown Vat the top of iig. 2, is large Y enough to admit a man. to'clean the boilers, and should bemade with a top, to fasten on with se'ews, with la ground joint, that it may be taken oi, like a cylinderhead, and put on again.

Fig` 3, letter B, shows but eight openings f or fines; but these may be inereasedtoany desired number, so lthat there will be the least possible amount of water,

the spaces being occupied bythe fines,

The fire-box in the skeleton drawing, No. 4, isrin such relation with the'iiues and the boiler, thatthe depth of water thereneed not exceed two inches, and may be less, making spaces the same size between the v fines and fire-box.

Having thus described my invention,

What I claim as new, and desire to secure byLetters Patent, is v l The arrangement of the benttnbes B, with refert ence to the boiler A and smoke-box O, substantially as herein set forth.

` Witnesses:

` 'J. M. SHAFFER,

D. `B. WILSON.

`ANTHONY DEMAREA I 

